kevin1

1、 [code="java"] case when else end select name 姓名,case sex when boy then 男 else 女 end from student; select name 姓名,case age when 20 then 青年 when 30 then 中年 when 60 then 老年 else 其它 end from age_t...

1.insert into EMAIL_INFO (name, Email_Id) values ('zxlin@dfmc.com.cn', EMAIL_INFO_SEQ.NEXTVAL); 2.oracle导入sql文件：@*.sql 3.备份table create table 备份表名 as select * from 表名 4.导出数据到excle main....

1.基本命令 mongodb启动 [code="java"] help; db.help(); show tables; mkdir -p /home/db mongod –port 11111 –dbpath E:\data\mongodb > use foobar > db > post = {"title":"my blog post","content":"h..

[b]fastdfs安装[/b] 1.编译安装 libevent-1.4.14b-stable [code="java"] $./configure $ make # make install[/code] 2.FastDFS v3.05 [code="java"]$./make.sh #./make.sh install[/code] [b]FastDFS安...